System Design · Meta · Hard
You are running a live experiment with three candidate treatments. The primary success metric is conversion, but conversions may be attributed only after some delay. A separate churn metric acts as a safety guardrail: if churn degrades beyond a predefined tolerance, the experiment must be stopped or rolled back. You plan to allocate traffic adaptively using a Thompson Sampling bandit. a) Specify the Thompson Sampling model: choose appropriate likelihoods, priors, and…
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